Add a Rich Text Editor to WordPress Comments
Not every visitor to your WordPress site will be comfortable using markup. You can make it easier for people commenting by adding a rich text editor to the WordPress comment form. Rich Text Editor for Comments is a new plugin that does this for you.
Simply install and activate the plugin and it will be automatically turned on – no settings to mess with. It’s fast, lightweight, and cross-browser enabled. You can download Rich Text Editor for Comments from the WordPress plugin repository.